Toyota Tundra. Manual — part 323
1. CHECK ELECTRICAL DOOR LOCK OPERATION
a. Check the basic function.
1. Check that all doors lock when the door lock control switch (for manual operation) is turned
to LOCK and all doors unlock when turned to UNLOCK.
2. Check that all doors lock when the driver side door lock key cylinder is turned to LOCK
using the key.
3. Check that only the driver side door unlocks when the driver side door lock key cylinder is
turned to UNLOCK and all doors unlock when turned to UNLOCK once again within 3
seconds using the key (2-step unlock function).
b. Check the key lock-in prevention.
1. Turn the ignition switch ON.
2. With the driver side door open, check that all doors unlock immediately after the door lock
knob for the driver side door is turned to LOCK.
3. With the driver side door open, check that all doors unlock immediately after the door control
switch (for manual operation) is turned to LOCK.
4. With the driver side door open, turn the driver side door lock knob to LOCK and hold it for 2
seconds or more, and then close the driver side door. Then check that all doors unlock.
c. Check the security function.
1. Close all doors with the driver side door glass open so that the door control switch can be
operated from outside the vehicle.
2. Pull out the key, open the driver side door and then close and lock the door without using the
key. Then, check that all doors do not unlock when the door control switch (for manual
operation) is turned to UNLOCK from outside the vehicle.
3. Pull out the key, close and lock the driver side door with the key operation. Under this
condition, check that all doors do not unlock when the door control switch (for manual
operation) is turned to UNLOCK from outside the vehicle.
4. Pull out the key, close the driver side door and lock the door with the wireless door lock
operation. Then, check that all doors do not unlock when the door control switch (for manual
operation) is turned to UNLOCK from outside the vehicle.
HINT:
Check that the security function is canceled under the following conditions.
The ignition switch is turned ON.
The driver side door is unlocked using the key.
The door control switch (for manual operation) is turned to UNLOCK after the door
control knob is turned to UNLOCK manually.
The doors are unlocked by wireless operation.
NOTE:
In order to prevent the key from being locked-in, the inspection
should be made with the driver side door window open.
2009 Toyota Tundra
2009 ACCESSORIES AND EQUIPMENT Door Lock - Tundra
d. Check the illumination function.
1. Set the room light switch in the DOOR position.
2. With all the doors locked, check that all doors unlock when the driver side door lock cylinder
is turned to UNLOCK using the key and that the room light turns on.
3. Check that the room light turns off in approximately 15 seconds after the doors have not been
opened.
CUSTOMIZE PARAMETERS
1. CUSTOMIZING FUNCTION WITH TECHSTREAM
HINT:
The following items can be customized.
a. Connect the Techstream to the DLC3.
b. Turn the ignition switch ON.
c. Turn the tester on.
d. Enter the following menus:
Techstream - Select: Customize Setting.
e. Select the setting by referring to the table below.
Techstream
Main Body
TECHSTREAM MAIN BODY
NOTE:
When the customer requests a change in a function, first make sure
that the function can be customized.
Be sure to make a note of the current settings before customizing.
When troubleshooting a function, first make sure that the function is
set to the default setting.
Display
Default
Contents
Setting
Unlock Key
Twice
ON
Function that unlocks only driver side door when driver
side door key cylinder is turned to unlock once, and
unlock all doors when it is turned to unlock twice. For
OFF setting, turning it once unlocks all doors.
ON/OFF
Auto lock
OFF
Function that locks all doors when vehicle speed reaches
a certain level.
ON/OFF
Auto Lock/Shift
ON
With engine running and all doors closed, function that
locks all doors when lever is moved to P from any
ON/OFF
2009 Toyota Tundra
2009 ACCESSORIES AND EQUIPMENT Door Lock - Tundra
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms
are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking
the suspected areas in the order they are listed. Replace parts as necessary.
Power door lock control system
POWER DOOR LOCK CONTROL SYSTEM
position other than P.
Auto
Unlock/Shift
ON
Function that unlocks all doors when lever is moved to P
from any position other than P while ignition switch is
ON.
ON/OFF
All
Unlock/Open-
Close
OFF
Function that unlocks all other doors when opening
driver door within 10 seconds after turning ignition
switch ON.
ON/OFF
Symptom
Suspected Area
Refer To
All doors cannot be
locked/unlocked simultaneously
by neither door control switch nor
door key cylinder
Power source circuit (Main body
ECU)
TERMINALS OF ECU
Main body ECU
TERMINALS OF ECU
All doors cannot be
locked/unlocked simultaneously
by driver side door control switch
Door control switch circuit
(Driver side)
DOOR CONTROL SWITCH
CIRCUIT
Main body ECU
TERMINALS OF ECU
All doors cannot be
locked/unlocked simultaneously
by front passenger side door
control switch
Door control switch circuit (front
passenger side)
DOOR CONTROL SWITCH
CIRCUIT
Main body ECU
TERMINALS OF ECU
All doors cannot be
locked/unlocked simultaneously
by door key cylinder
Driver side door key lock and
unlock switch circuit
DRIVER SIDE DOOR KEY
LOCK AND UNLOCK SWITCH
CIRCUIT
Main body ECU
TERMINALS OF ECU
Driver side door lock does not
operate
Driver side door lock motor
circuit
DRIVER SIDE DOOR LOCK
MOTOR CIRCUIT
Main body ECU
TERMINALS OF ECU
Passenger side door lock does not
operate
Front passenger side door lock
motor circuit
FRONT PASSENGER SIDE
DOOR LOCK MOTOR
CIRCUIT
Main body ECU
TERMINALS OF ECU
Rear LH side door lock does not
operate
Rear door lock motor circuit
REAR DOOR LOCK MOTOR
CIRCUIT
Main body ECU
TERMINALS OF ECU
2009 Toyota Tundra
2009 ACCESSORIES AND EQUIPMENT Door Lock - Tundra
TERMINALS OF ECU
1. CHECK MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK)
Rear RH side door lock does not
operate
Rear door lock motor circuit
REAR DOOR LOCK MOTOR
CIRCUIT
Main body ECU
TERMINALS OF ECU
Key lock-in prevention function
does not work properly (manual
operation and key - linked lock
are active)
Door courtesy light switch circuit
(Driver side)
DOOR COURTESY SWITCH
CIRCUIT
Unlock warning switch circuit
KEY REMINDER BUZZER
DOES NOT SOUND
Main body ECU
TERMINALS OF ECU
Shift-linked automatic door lock
does not operate
CAN communication system
ECM COMMUNICATION
STOP MODE
Main body ECU
TERMINALS OF ECU
One or more does cannot be
locked/unlocked simultaneously
Theft deterrent system
PROBLEM SYMPTOMS
TABLE
Driver side door unlock detection
switch circuit
DRIVER SIDE DOOR
UNLOCK DETECTION
SWITCH CIRCUIT
Front passenger door unlock
detection switch circuit
FRONT PASSENGER SIDE
DOOR UNLOCK DETECTION
SWITCH CIRCUIT
Rear door unlock detection switch
LH circuit
REAR DOOR UNLOCK
DETECTION SWITCH LH
CIRCUIT
Rear door unlock detection switch
RH circuit
REAR DOOR UNLOCK
DETECTION SWITCH RH
CIRCUIT
Main body ECU
TERMINALS OF ECU
2009 Toyota Tundra
2009 ACCESSORIES AND EQUIPMENT Door Lock - Tundra
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